to assist Arieh Wilner in finding and preparing weapons, in the Aryan part of Warsaw.
He hid there with his wife and 5 year old little girl. He originally tested and put to practical use the fabrication method for making Molotov cocktails. He was killed on 20 April, the second day of Insurrection, in hand-to-hand fighting in the Brushmakers' sector. He was 30. His wife and his daughter Irene survived.